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Finding the Fourth Proportional to 6,492.48, 8,961.12 and 3,698.88

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Solution

The fourth proportional to 6,492.48, 8,961.12 and 3,698.88 is: 5,105.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,492.48 : 8,961.12 = 3,698.88 : x
  2. Step 2: Convert to fraction form
    6,492.48/8,961.12 = 3,698.88/x
  3. Step 3: Cross multiply
    6,492.48x = 8,961.12 × 3,698.88
  4. Step 4: Simplify right side
    6,492.48x = 33,146,107.55
  5. Step 5: Solve for x
    x = 33,146,107.55/6,492.48
  6. Step 6: Final answer
    x = 5,105.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.